1012900943 has 2 divisors, whose sum is σ = 1012900944. Its totient is φ = 1012900942.

The previous prime is 1012900927. The next prime is 1012900969. The reversal of 1012900943 is 3490092101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1012900943 - 2⁴ = 1012900927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1012900643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506450471 + 506450472.

It is an arithmetic number, because the mean of its divisors is an integer number (506450472).

Almost surely, 2^1012900943 is an apocalyptic number.

1012900943 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012900943 is an equidigital number, since it uses as much as digits as its factorization.

1012900943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 1012900943 is about 31826.1047412340. The cubic root of 1012900943 is about 1004.2819530414.

The spelling of 1012900943 in words is "one billion, twelve million, nine hundred thousand, nine hundred forty-three".